Assuming a cowgirl or reverse cowgirl position, the receiving partner holds onto a ceiling fan or similar rotating device while riding the penetrating partner in constant, rhythmic rotation and penetration at no less than 13 mph.
If you think a blumpkin is an experience, let me introduce you to the TwirlyTwist.
A sexual position used often. Where the male, is lieing on his back and the female, while riding the male, twirls in a circular motion and does a complete 360 keeping the penis inside her vagina the whole time.